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A man pertending to be young, trying to be cool,but everyone knows he isn't.

you know when you suffer from
desantoism when:
you reapetedly wear the same shirt
you always say ok
John thinks he's so awesome after he went to the party during spring break.

Dude I know I think he is suffering from a desantoism.
by jaykee May 07, 2008
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